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On the birds of Cayenne
Published in Novit. zool., in 1908, in volume 15, pages 103-164
Created: 2012-11-18, modified: 2012-11-18
Revision der Tanagriden
Published in Verhandlungen des V. Internationalen Ornithologen-Kongresses in Berlin 30. Mai bis 4. Juni 1910, in 1911, in volume 5, pages 1001-1161
Created: 2015-09-02, modified: 2015-09-02
Ueber Chrysotis brasiliensis
Published in Journal für Ornithologie, in 1891, in volume 39, pages 363-366
Created: 2014-09-04, modified: 2014-09-04
Die Insectivora von Kreta
Published in Zeitschrift Fuer Saugietierkunde, in 1953, in volume 17, pages 4-13
Created: 2014-07-21, modified: 2014-07-21
Spongien von Sansibar
Published in Abhandlungen Der Senckenbergischen Naturforschenden Gesellschaft, in 1897, in volume 21, pages 93-133
Created: 2017-10-12, modified: 2017-10-12